Railway-crossing.



L. ALEXANDER.

RAILWAY CROSSING.-

APPLIOATION FILED MAY 16, 1910.

977,153. Patented Nov. 29, 1910.

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L. ALE A DER.

BAILW 0S APPLICATION D H 1910.

9775153. Patented Nov. 29, 1910.

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UITE l STTES ATENT rron LEWIS ALEXANDER, E CLINTON, ILLINOIS, ASSIGNORTO ALEXANDER CROSSING COMPANY, OF CLINTON, ILLINOIS, A CORPORATION OFILLINOIS.

RAILYVAY-CROSSING.

amiss.

Specification of Letters Patent.

Patented Nov. 2? 1910.

Application filed May 16, 1910. Serial No. 561,601.

To all whom 'it may concern:

Be it known that I, Lnwrs ALEXANDER, a citizen of the United States,residing at Clinton, in the county of DeVVitt and State of Illinois,have invented certain new and useful Improvements in Railway-Crossings,of which the following is a specification.

This invention relates to railway crossings and the main object of thesame is to produce a device of this kind applicable to cases in whichthe tracks cross each other at angles, and one in which the rails of thetrack are made continuous.

To these ends the invention consists primarily of a base plate and railcarrying tumblers journaled in four independent bearings adapted to beseparately bolted to said plate and it consists secondarily in thepeculiar construction of the tumblers and their supports, and in themeans of locking them, all of which will be hereinafter more fullydescribed and particularly pointed out in the claims.

These objects I accomplish in the manner illustrated in the followingdrawings, in which- Figure 1 is a general plan View of the crossing,Fig. 2 is a side view, partly in section, of one of the tumblers and itsconnecting parts locked in transverse position, Fig. 3 is a sectionalview of the locking device engaging the head of a tumbler, and, Fig. 4is a perspective view of a bearing.

Similar reference characters refer to similar parts in all the drawings.

1 represents the base plate, 2 the bearings, 3 the tumblers, 4 theoperating mechanism and 5 the track. The base plate 1 is preferably arectangular sheet of metal, supported on ties or otherwise, and rigidlysecured to the bearings 2 by bolts (3. The bearings 2 are duplicates ofeach other, each comprising a body preferably rectangular and piercedwith a plurality of holes 7 to receive bolts 6, whose nuts arepreferably disposed at the upper end thereof, and superimposed upon thebase plate 1. The body of the bearing is preferably formed with a raisedannular boss 8 surrounding a central upright hole 9 through the bearing.A channeled recess 10 parallel to the diagonal axis of the plate, isadapted to receive the rack bar 24: forming a part of the mechanism. Thetumbler 8 for each hearing has a cylindrical body of a size to fitrotatably in the hole 9 and a pinion 11 formed therewith, the teeth ofwhich extend into the channeled recess 10, an enlarged head 12 providedwith two cylindrical recesses 13- extending through the head and adaptedto receive the locking pins 14 to secure the section of rail 15 borne byeach tumbler in alinement with the track 16 or the transverse track 17as may be desired, the section 15 being of a length to bridge the breakin each of the rails forming part of the tracks which cross each other,at right angles.

The rails 16 and 17 are of the usual construction, suitably supported onties not shown and are connected with the plate by chair straps 18,certain pairs of which outside of each rail, are provided with stops 19adapted to prevent the revolution of the rail section 15 beyond theproper alinement with the rails on the transverse track and blocks 25integral therewith and slotted to receive locking pins let. The adjacentends of the rails lie fiat on the plates 2 and abut against the boss 8formed slightly larger than the head of its tumbler to the end that anyexpansion of the rails may not affect the rotation of the tumbler.

The operating mechanism which forms a part of this invention comprises arod 20 actuating the rods 14 through the bell crank levers 22 to engagethe recesses 18 in the respective heads 12 when track 16 is to be used.The rod 21 through the bell crank levers 23 actuates the rack bar 24 todrive each tumbler 3 to its position in alinement with the trackdesired. When the rail sections 15 are to be brought in alinement withtrack 17, the tumblers 3 are actuated through the lever 2-1 and the rackbar 24 and are prevented from moving beyond their proper position ineither direction by the stops 19. Locking pins 14 passing through blocks25 and actuated by lever 26 through bell crank levers 27, secure therail sections 15 in alinement.

hat I claim, is

1. In a railway crossing, the combination with a series of bearings,tracks whose rails break over the bearings, tumblers ournaled in saidbearings and having openings therethrough, locking members adapted tolie within the openings in the tumblers, enlarged heads on the tumblers,rail sections on the heads adapted to bridge the breaks in the tracks,blocks rigid with the rails having extensions projecting therefrom tolimit the movement of the rail sections on the heads, pinions on thetumblers, a rack bar in a channeled recess in each bearing adapted toengage the pinions, means for actuating the rack bar, and separate meansfor actuating the locking pins to hold the tumblers in their respectivepositions.

2. In a railway crossing, the combination with a series of bearings,tumblers journaled in the latter, tracks Whose rails have breaks oversaid tumblers, rail sections on the tumblers adapted to bridge thebreaks, pinions on the tumblers, a rack bar lying in a journaled recessin the bearing adapted to engage the pinions, means rigid with the railsections for limiting the revolution of the tumblers, reciprocatinglocking pins ex tending into slots in the tumblers for locking the railsections in longitudinal and transverse position, and means for rotatingthe tumblers.

In testimony whereof I aflix my signature in presence of tWo Witnesses.

LE'WIS ALEXANDER. lVitnesses CHAS. MORRISON, FRED BALL.

